Patent · US Expired

Method of fabricating a thin film transistor

US5585292A · kind A · utility

6Cited by
1References
10Claims
0Family size

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Key dates

Filing dateFeb 3, 1995
Grant dateDec 17, 1996
Priority date
Expiry dateFeb 3, 2015

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10D30/6739
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

A thin film transistor comprises an insulator interposed between a gate electrode and a polycrystalline silicon semiconductor layer, with the polycrystalline silicon semiconductor layer having a source region and a drain region with a channel between the source region and the drain region. The insulator comprises an ONO structure having an interfacial oxide layer in contact with the polycrystalline silicon semiconductor layer, a cap oxide layer in contact with the gate electrode, and a nitride layer interposed between the interfacial oxide layer and the nitride layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.